Сопоставим предложения:
1 Can I help you? - d I'm just looking, thank you.
2 What size are you? - e I'm a medium.
3 Can I try on this shirt? - a Yes, the changing rooms are over there.
4 This shirt doesn't fit me. - b It's too big for me.
5 That jacket really suits you! - c You always look good in red.
6 I'm going to take these trousers back. - f They're too short.
Ответ: смотри решение
Прекрасно! Продолжай в том же духе!